增加 迁移回滚功能实现

server/migrations/007_createSystemSettingsTable.ts

@@ -0,0 +1,25 @@
+import type { MigrationLiveDefinition } from '@d8d-appcontainer/types'
+import { SystemSettingKey, SystemSettingGroup, ALLOWED_FILE_TYPES } from '../../client/share/types.ts'
+
+const createSystemSettingsTable: MigrationLiveDefinition = {
+  name: "create_system_settings_table",
+  up: async (api) => {
+    await api.schema.createTable('system_settings', (table) => {
+      table.increments('id').primary();
+      table.string('key').notNullable().unique().comment('设置键');
+      table.text('value').notNullable().comment('设置值');
+      table.string('description').nullable().comment('设置描述');
+      table.string('group').notNullable().comment('设置分组');
+      table.timestamps(true, true);
+      
+      // 添加索引
+      table.index('key');
+      table.index('group');
+    });
+  },
+  down: async (api) => {
+    await api.schema.dropTable('system_settings');
+  }
+}
+
+export default createSystemSettingsTable;